J/ApJ/924/121ivo://CDS.VizieR/J/ApJ/924/121doi:10.26093/cds/vizier.19240121CDSArcavi I.Nyiha I.French K.D.2024-08-13T20:13:09Z2023-09-13T09:48:09ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesphotometrytransient-sourcessupernovaeredshiftedTidal disruption events (TDEs) have been found to show a preference for post-starburst (PS) and quiescent Balmer-strong (QBS) galaxies. This preference can be used to help find TDEs in transient surveys. But what other transients might "contaminate" such a search, and by how much? We examine all reported transients coincident with the centers of galaxies in the French & Zabludoff (2018, J/ApJ/868/99) catalog of spectroscopically confirmed PS and QBS galaxies and photometrically identified PS and QBS galaxy candidates. We find that TDEs and Type Ia supernovae (SNe) are the only types of transients classified in the centers of these galaxies (aside from one active galactic nucleus flare), with Type Ia SNe being 8.3+/-0.2 times more prevalent than TDEs (1{sigma} confidence bounds). This factor is ~2.7 times lower than in a control sample of quiescent galaxies. Narrowing the sample to spectroscopically confirmed QBS galaxies does not change these statistics much. In spectroscopically confirmed PS galaxies, however, TDEs are the ones that outnumber Type Ia SNe 2+/-0.6 to 1. Unfortunately, there are few such galaxies in the catalog. By classifying transients from the entire catalog, three times more TDEs are expected to be found, but with a ~16 times larger Type Ia SN contamination. We use the public ZTF photometric archive to search for possibly missed TDEs in the French & Zabludoff (2018) galaxies. We find three unclassified clear transients-none of which are likely missed TDEs based on their light-curve colors.2022ApJ...924..121Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/924/121CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/357 : The Dark Energy Survey (DES): Data Release 1 (Abbott+, 2018)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/ApJ/793/38 : Palomar Transient Factory photometric obs. (Arcavi+, 2014)J/ApJ/844/46 : Phot. of the transient event iPTF16fnl (Blagorodnova+, 2017)J/ApJ/868/99 : Identifying post-starburst galaxies from surveys (French+, 2018)http://www.wis-tns.org/ : Transient Name Server (TNS) home pagehttp://lasair.roe.ac.uk/watchlist/321/ : Latest ZTF Transient Alerts Maphttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/924/121https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/924/121http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/924/121https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/924/121https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/924/121http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/924/121GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/924/121/table3 (Events in the TNS that are coincident to within 1" with the center of a galaxy in the French & Zabludoff 2018, J/ApJ/868/99 (FZ18) catalog (see Section 4.1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/924/121/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/924/121/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/924/121/table3?GETtext/xml+votable180.050000true16.77475-0.131610.005555555555555556Cone search capability for table J/ApJ/924/121/table4 (Events in the ZTF public alert stream which are coincident to within 1" with the center of a galaxy in the FZ18 catalog (see Section 4.2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/924/121/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/924/121/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/924/121/table4?GETtext/xml+votable180.050000true176.8093314.142490.0055555555555555566/599 662 899 938 1512 1530 1700 1997 2065 2295 2390 2907 2910 3025 3215 4118 4130 4199 4259 4273 4318 4543 4571 4586 4696 4795 4803 4812 4838 4845 5034 5092 5102 5113 5140 5148 5150 5152 5190 5207 5220 5238 5367 5373 5380 5383 5398 5425 5428 5513 5515 5522 5553 5565 5573 5635 5662 5698 5703 5721 5757-5758 5817 5821 5830 5886 5920 5941 5947 5957 5979 5981-5983 6008 6031 6034 6129 6480 6515 6520 6546 6561 6566 6569 6588 6654 6701 7157 7172 7198 7206 7220 7222-7223 7233 7341 7409 7560 7687 7794 7870 8029 8056 8214 8225 8255 8277 8285 8334 8397 8404 8420 8482 8542 8563 8568 8590 8600 8641 8647 8668 8678 8687 8732 8786 8799 8912 8990 9025 9051 9053 9082 9085 9103 9119 9125 9134 9136 9173 9182 9231 9243-9244 9282 9326-9327 9337 9352 9374 9520 9783 9906 9915 9953 9958 9975 9981 10018 10053 10188 10226 10285 10298 10312-10313 10338 10345 10378 10399-10401 10411 10413 10419 10424 10437 10480 10550 10559 10626 10638 10647 10650 10706 10728 10815 10823 10835 10877 10898 10913 10915 10932 10949 10965 10978 11030 11049 11071 11087 11094 11105 11114 11120 11127 11135 11138 11142 11160 11221 11275 11280 11291 11304 11309 11357 11382 11388 11398 11408 11415 11418 11420 11446 11483 11588 11785 11799 11840 11882 11937 12111 12321 12391 12398 12402 12653 12744 12830 12907 12979 13512 13533 13706 13761 13809 14028 14077 14169 14188 14251 14499 14599 14635 15247 15465 15474 15616 15995 16765 16840 17293 17295 17417 17441 17481 17523 17533 17617 17623 17674 17705 17715 17742 17763 17820 17841 17951 17999 18020 18089 18091 18105 18114 18178 18181 18838 18852 18953 19058 19445 19480 19772 19988 20317 20410 20916 21095 21125 21649 21711 22718 22985 23083 23196 23752 23887 23929 23973 25258 25851 26139 26226 26284 26369 26449 26602 26861 26978 27085 27223 27226 27240 27251 27355 27401 27416 27474 27508 27559 27592 27636 27741 27806 27868 27875 27879 27888 27975 27981 27984 27994 28005 28010 28034 28056 28075 28151 28232 28236 28241 28249 28264-28265 28310 28328 28333 28365 28390 28407 28431-28432 28441 28443 28449 28463-28464 28466-28467 28470 28479 28487 28502 28506 28513 28515 28522 28571 28574 28578 28595 28614 28617 28638 29051 29875 30590 31624 31631 31685 31723 31810 31972 32447 32686 34234 36114 36334 36429 36480 36539 36548 36742 36850 49011 49112https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/924/121?format=asciidefaultJ/ApJ/924/121/table3Events in the TNS that are coincident to within 1" with the center of a galaxy in the French & Zabludoff 2018, J/ApJ/868/99 (FZ18) catalog (see Section 4.1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTNameIAU name from the TNSmeta.id;meta.maincharprimaryRAJ2000[1.4/346.6] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-38.3/77.7] Declination (J2000)degpos.eq.dec;meta.mainTClassTNS classification (1)src.classcharONameOther name(s)meta.idcharFZ18Tables numbers from FZ18meta.numbercharSep[0.04/0.99] Separation from hostarcsecpos.angDistancefloatZTFEvent also in the ZTF (link to Table 4)meta.ref.urlcharSloanDisplay the online SDSS-DR16 data for the nearest objectmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/924/121/table4Events in the ZTF public alert stream which are coincident to within 1" with the center of a galaxy in the FZ18 catalog (see Section 4.2)z[0.026/0.4]? Redshift from the host galaxy spectrum, if available, or from other sources (2)src.redshiftfloatnullableSloanDisplay the online SDSS-DR16 data for the nearest objectmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintZTFZTF name (YYaaaaaaa)meta.id;meta.maincharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-26.5/80.3] Declination (J2000)degpos.eq.dec;meta.mainNdet[2/573] Number of detectionsmeta.numberintClassSherlock class (1)src.classcharTNameTNS namemeta.id.crosscharTClassTNS classsrc.classcharSimbadSimbad column added by the CDSmeta.ref.urlcharRankLight-curve rankmeta.code.qualcharFZ18Tables numbers from FZ18meta.numberchar